A surfer got quite the surprise on Saturday when three dolphins decided to drop in on his wave and frolic in the water.

The surfer was enjoying a riding out a metre wave at Yallingup beach, three hours south of Perth, when he spotted the three finned animals jump leap through the surf and join him, according to Perth Now.

Unsure if the fins were from dolphins or sharks, the surfer hung back and watched on as they continued to glide through the water.

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A surfer was gliding across a wave at Yallingup beach, three hours south of Perth, on Saturday when three dolphins leaped through the surf and joined him (pictured)

When he realised they were a family of dolphins, he continued to join them on the wave and watched on.